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Texas Instruments DS90UA102TRHSRQ1
- Part No.:
- DS90UA102TRHSRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Serializers, Deserializers
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
DS90UA102TRHSRQ1.pdf
- Description:
- IC SER/DESER 10-50MHZ 8B 48-WQFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
DS90UA102TRHSRQ1 from Texas Instruments is an AEC-Q100 Grade 2 automotive-qualified digital audio deserializer that receives high-speed serialized data over a single coaxial or shielded twisted-pair cable and outputs up to eight parallel LVCMOS audio channels (I²S/TDM), word/frame sync, bit clock, system clock, and four GPIO/GPO signals. It operates with 1.8V core supply and supports 1.8V/3.3V I/O, features adaptive equalization for up to 15m cable, and delivers <15 µs end-to-end latency in infotainment head units.
For engineers reviewing the DS90UA102TRHSRQ1 datasheet, DS90UA102TRHSRQ1 pinout, DS90UA102TRHSRQ1 application, or DS90UA102TRHSRQ1 equivalent, this page provides verified technical context on its serializer-deserializer link architecture, bidirectional I²C control channel, low-jitter clock recovery (22–35 ps SCK jitter at 50 MHz), and automotive-grade thermal (-40°C to +105°C) and ESD (±25 kV air, ±7 kV contact on RIN±) performance.
Technical Context
The DS90UA102TRHSRQ1 implements a CDR-based deserialization architecture with adaptive equalization on the LVDS input pair (RIN+/RIN−), recovering embedded clock and data from FPD-Link III–compliant serial streams. It integrates a PLL for clock regeneration and outputs synchronized LVCMOS audio timing signals (SCK, LRCK, BCK) with programmable edge alignment (RRFB bit).
Its bidirectional control interface uses I²C-compatible open-drain SDA/SCL pins to support local register access and remote configuration of the companion DS90UA101-Q1 serializer via back-channel transport. The device includes dedicated hardware status pins (LOCK, PASS) and built-in at-speed BIST with parity error detection for link integrity validation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 1.8V core (VDD, VDDD, VDDR, VDDPLL, VDDCML); 1.8V or 3.3V I/O (VDDIO) |
| Audio Output Channels | 8 LVCMOS digital audio outputs (DOUT[7:0]) supporting I²S stereo or TDM multi-channel formats |
| System Clock Range | 10–50 MHz SCK output; supports STP (10–50 MHz) and coaxial (25–50 MHz) interconnects |
| Latency | <15 µs total end-to-end delay including serialization, transmission, and deserialization |
| Cable Support | AC-coupled coaxial or shielded twisted pair up to 15 m with adaptive equalization compensation |
| Control Interface | I²C-compatible bidirectional control channel (SDA/SCL) with auto-acknowledge and pass-through mode |
| Automotive Qualification | AEC-Q100 Grade 2 qualified; operating temperature −40°C to +105°C |
Pinout & Package
DS90UA102TRHSRQ1 is housed in a 48-pin WQFN package (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad (DAP). Pin functions are validated per TI SNLS442A datasheet Rev. September 2013.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RIN+, RIN− | LVDS serial input pair | Differential receiver inputs for high-speed forward channel; require AC coupling (0.1 µF) and internal 100 Ω differential termination |
| SCK, LRCK, BCK | LVCMOS timing outputs | Recovered system clock, word clock, and bit clock - synchronous to DOUT[7:0] and configurable for rising/falling edge strobing (RRFB) |
| DOUT[7:0] | Digital audio data outputs | 8-bit parallel LVCMOS audio data bus; timing-aligned to SCK/LRCK/BCK with 0.38–0.5 UI setup/hold margins |
| GPIO[3:0], GPO[3:0] | General-purpose I/O | GPIOs support local input or register-controlled output; GPOs are transported from serializer over forward channel |
| SDA, SCL | I²C bidirectional control interface | Open-drain pins with external 4.7 kΩ pull-ups to VDDIO; support local register access and remote serializer configuration |
| LOCK, PASS | Status outputs | LOCK = H indicates stable PLL lock and valid outputs; PASS = H confirms error-free payload reception (parity-checked) |
| PDB, OEN, BISTEN | Control inputs | PDB enables power-down mode (IDDZ < 900 µA); OEN tri-states DOUT/GPO; BISTEN activates at-speed link BIST |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive cable equalization | Compensates for frequency-dependent loss in coaxial/STP cables up to 15 m, reducing deterministic jitter induced by medium attenuation |
| DC-balanced & scrambled data | Embedded clock recovery enabled without separate clock line; scrambling ensures sufficient signal transitions for CDR lock stability |
| Bidirectional control channel | Enables I²C read/write access to serializer registers (e.g., DS90UA101-Q1) remotely over same physical link - eliminates extra control wiring |
| At-speed link BIST | Hardware-accelerated bit-error testing during operation; PASS pin toggles per parity error, enabling real-time diagnostics without host intervention |
| Flexible I/O voltage | VDDIO supports 1.8V or 3.3V operation - allows direct interfacing with mixed-voltage audio DACs, DSPs, or microcontrollers without level shifters |
Applications
| Automotive Infotainment Head Unit | Active Noise Cancellation (ANC) System |
|---|---|
|
Use Scenario: Central head unit transmits multi-zone audio streams to distributed amplifiers and speakers across vehicle cabin using lightweight coaxial cabling. IC Role / Device Role / Timing Role: DS90UA102TRHSRQ1 deserializes FPD-Link III audio from DS90UA101-Q1, outputs synchronized I²S/TDM streams and clocks to local DACs or amplifiers. Use Value: Replaces bulky multi-wire harnesses with single coax; maintains <15 µs latency critical for real-time ANC feedback loops and lip-sync accuracy. |
Use Scenario: Microphone array signals are digitized at door modules and transmitted to central DSP for real-time noise modeling and anti-noise generation. IC Role / Device Role / Timing Role: DS90UA102TRHSRQ1 receives time-aligned TDM audio from remote ADCs, recovers low-jitter SCK (22–35 ps) for precise sample timing in DSP processing. Use Value: Adaptive equalization preserves signal integrity over 10–15 m STP runs; LOCK/PASS pins enable fail-safe monitoring of audio path health. |
| Distributed Multi-Channel Audio System | Automotive Rear-Seat Entertainment |
|
Use Scenario: High-fidelity 16+ channel audio system routes independent streams to front/rear/surround zones using centralized processing and decentralized playback nodes. IC Role / Device Role / Timing Role: DS90UA102TRHSRQ1 acts as endpoint deserializer at each zone, providing eight parallel audio outputs plus GPIO for zone-specific mute/control. Use Value: Supports up to 8 stereo I²S or TDM channels per device; GPO[3:0] enables direct control of local amplifier enable, EQ, or speaker protection circuits. |
Use Scenario: Rear-seat displays and headphones receive independent audio content from head unit via isolated, EMI-robust interconnect. IC Role / Device Role / Timing Role: DS90UA102TRHSRQ1 terminates serial link at rear node, outputs isolated LVCMOS audio and clocks while maintaining AEC-Q100 compliance. Use Value: ±25 kV air-gap ESD rating on RIN± protects against cable discharge events; 1.8V/3.3V I/O simplifies integration with diverse display/audio SoCs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital audio deserializer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS90UB925QSQX/NOPB | Higher bandwidth (1.5 Gbps vs. 1.4 Gbps), integrated HDCP, but no native TDM support - requires external format conversion | Targeted at video+audio hybrid links (e.g., camera displays); lacks dedicated TDM audio routing flexibility | Select when video co-transmission is required; avoid if pure multi-channel audio timing integrity is primary requirement |
| MAX9278GTJ/V+T | GMSL2-compliant, supports longer reach (20 m), but requires MAX9271 serializer; higher power (75 mA vs. 32 mA typical) | Optimized for ADAS camera links; audio capability is secondary and limited to 4-channel I²S | Prefer for camera-centric systems needing extended cable length; not suitable for 8-channel TDM audio distribution |
Compared with DS90UA102TRHSRQ1, DS90UB925QSQX/NOPB adds video support at cost of audio format flexibility, while MAX9278GTJ/V+T prioritizes camera link robustness over audio channel count and low-latency timing - making DS90UA102TRHSRQ1 optimal for dedicated automotive multi-channel audio infrastructure.
Availability
DS90UA102TRHSRQ1 is available at Aetrix Electronics and suitable for automotive infotainment systems, active noise cancellation subsystems, and distributed multi-channel audio architectures requiring stable component supply, AEC-Q100 compliance, and long-term production continuity.
Supply support for DS90UA102TRHSRQ1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and automotive ICs, with deep expertise in high-speed serial interface technology and functional safety design.
The DS90UA102TRHSRQ1 belongs to TI's FPD-Link III automotive serializer-deserializer product line, engineered specifically for low-latency, EMI-resistant digital audio transport in harsh automotive environments.
FAQ
What is the maximum supported cable length for DS90UA102TRHSRQ1?
The DS90UA102TRHSRQ1 supports AC-coupled coaxial or shielded twisted-pair cables up to 15 meters in length. This capability is enabled by its adaptive equalization circuitry, which compensates for frequency-dependent signal loss in the cable medium. Performance validation per TI SNLS442A confirms stable link operation at full data rates (up to 1.4 Gbps) within this distance under automotive temperature and EMI conditions.
Does DS90UA102TRHSRQ1 support both I²S and TDM audio formats?
Yes, DS90UA102TRHSRQ1 natively supports both I²S (stereo) and TDM (multi-channel) digital audio output formats. It can deliver up to eight parallel audio channels via DOUT[7:0], with frame synchronization provided by LRCK and bit timing by BCK. Format selection is controlled by the companion DS90UA101-Q1 serializer, and DS90UA102TRHSRQ1 transparently recovers and outputs the configured stream without format conversion.
How does the bidirectional control channel work in DS90UA102TRHSRQ1?
The DS90UA102TRHSRQ1 implements an I²C-compatible bidirectional control channel using SDA and SCL pins. It allows local register access and enables remote configuration of the DS90UA101-Q1 serializer over the same physical link - eliminating separate control wiring. Features include I²C pass-through mode, remote write auto-acknowledge, and alias addressing for multiple downstream slaves, all documented in DS90UA102TRHSRQ1 register map (0x00–0x0B).
What are the power supply requirements for DS90UA102TRHSRQ1?
DS90UA102TRHSRQ1 requires two independent supplies: a 1.8V ±5% analog/digital core supply (VDD, VDDD, VDDR, VDDPLL, VDDCML) and a flexible 1.8V or 3.3V ±10% I/O supply (VDDIO). Total typical supply current is 32 mA at 1.8V VDDIO/50 MHz SCK, dropping to <900 µA in power-down mode (PDB = L). Decoupling and noise limits (25 mVp-p at 1.8V) are specified in the recommended operating conditions table.
Is DS90UA102TRHSRQ1 pin-compatible with other devices in the DS90UA10x-Q1 family?
No, DS90UA102TRHSRQ1 is not pin-compatible with other members of the DS90UA10x-Q1 family, such as DS90UA101-Q1 (serializer) or DS90UA103-Q1. Its 48-pin WQFN layout is specific to the deserializer function, with dedicated RIN+/RIN− inputs, DOUT[7:0] outputs, and asymmetric control pin allocation. Pin diagrams and electrical characteristics in SNLS442A confirm unique placement and drive strength for each signal group.
DS90UA102TRHSRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 48-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Deserializer
- Data Rate:
- 600Mbps
- Input Type:
- FPD-Link III, LVDS
- Output Type:
- LVCMOS
- Number of Inputs:
- 1
- Number of Outputs:
- 4
- Voltage - Supply:
- 1.71V ~ 1.89V
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-WQFN (7x7)
DS90UA102TRHSRQ1 FAQ
1.How can I place an order for DS90UA102TRHSRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for DS90UA102TRHSRQ1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DS90UA102TRHSRQ1 reliable?
The price and inventory of DS90UA102TRHSRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS90UA102TRHSRQ1 is usually 5 days.
3.What payment methods are accepted for DS90UA102TRHSRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS90UA102TRHSRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS90UA102TRHSRQ1?
DS90UA102TRHSRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS90UA102TRHSRQ1 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DS90UA102TRHSRQ1?
For technical support, including DS90UA102TRHSRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS90UA102TRHSRQ1 requirements.
6.How does Aetrix verify that DS90UA102TRHSRQ1 is sourced from the original manufacturer or authorized distributors?
All DS90UA102TRHSRQ1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DS90UA102TRHSRQ1 meets industry standards.
7.What is the process for return or replacement of DS90UA102TRHSRQ1?
All DS90UA102TRHSRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with DS90UA102TRHSRQ1, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DS90UA102TRHSRQ1 part is unused and in its original packaging.
Return procedure for DS90UA102TRHSRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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